<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <form>
      <input type="text" name="username" placeholder="请输入用户名" /><br />
      <input type="text" name="password" placeholder="请输入密码" /><br />
      <button type="submit">登录</button>
    </form>
  </body>
  <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
  <script>
    const form = document.querySelector('form')

    const inputUsername = document.querySelector('input[name=username]')
    const inputPassword = document.querySelector('input[name=password]')

    form.addEventListener('submit', function (e) {
      e.preventDefault()
      const username = inputUsername.value
      const password = inputPassword.value
      axios
        .post('http://ajax-api.itheima.net/api/data', {
          data: { username, password },
        })

        .then(({ data: res }) => console.log(res))
    })
  </script>
</html>
